Baseball Bat.

Sale 1

https://backpack.tf/profiles/76561198170002027#!/compare/1586304000/1586390400

https://imgur.com/a/J8L2UWk

200 keys for the Bonk and a Pro KS Ambassador worth 13 keys ~ 187 keys

Sale 2

https://backpack.tf/profiles/76561198168863803#!/compare/1583539200/1583625600

Bonk traded for Bubbling Pullover 188.5 keys, Smoking BOA 34 keys ~ 222.5 keys

BOA MINI

Marketplace.tf sales

https://marketplace.tf/items/tf2/30066;5;u35

Jan 13th sold for $54, keys 1.77 so 30.5 keys round up to 31 Keys

Feb 8th sold for 65, keys 1.77 so 36.72 Round up to 37 Keys

feb 29th sold for 65, keys 1.74 so 37.35 Round down to 37 keys

https://backpack.tf/profiles/76561198101915413#!/compare/1582761600/1582848000 bulk sale

https://backpack.tf/profiles/76561198238019026#!/compare/1583366400/1583625600 1:1 rack DP rack which has buyers at 40, high sale, outlier

so price is 31-37